LINKING TRACKED OBJECTS THAT UNDERGO TEMPORARY OCCLUSION
First Claim
1. A method comprising:
- displaying a first image corresponding to a field of view of at least one camera,providing a user interface that allows a user to;
identify a first region of the first image at which objects may disappear from the image,identify a second region of a second image at which objects may appear in the other image, anddefine a first likelihood that an object that disappears from the first region will appear in the second region, andsubsequently identifying a target object in the first image, and determining whether the target object appears in the second image based on the first likelihood and an object similarity measure.
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Accused Products
Abstract
A method and system is configured to characterize regions of an environment by the likelihoods of transition of a target from each region to another. The likelihoods of transition between regions is preferably used in combination with conventional object-tracking algorithms to determine the likelihood that a newly-appearing object in a scene corresponds to a recently-disappeared target. The likelihoods of transition may be predefined based on the particular environment, or may be determined based on prior appearances and disappearances in the environment, or a combination of both. The likelihoods of transition may also vary as a function of the time of day, day of the week, and other factors that may affect the likelihoods of transitions between regions in the particular surveillance environment.
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Citations
20 Claims
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1. A method comprising:
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displaying a first image corresponding to a field of view of at least one camera, providing a user interface that allows a user to; identify a first region of the first image at which objects may disappear from the image, identify a second region of a second image at which objects may appear in the other image, and define a first likelihood that an object that disappears from the first region will appear in the second region, and subsequently identifying a target object in the first image, and determining whether the target object appears in the second image based on the first likelihood and an object similarity measure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method comprising:
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partitioning a camera image into a set of regions, defining a set of likelihoods of transition of objects between pairs of regions, and tracking target objects that traverse the camera image based on the set of likelihoods of transition. - View Dependent Claims (13, 14)
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15. A system comprising:
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a display processor that is configured to display a first image corresponding to a field of view of at least one camera, a user interface that is configured to allow a user to; identify a first region of the first image at which objects may disappear from the image, identify a second region of a second image at which objects may appear in the other image, and define a first likelihood that an object that disappears from the first region will appear in the second region, and an object comparer that is configured to; compare a target object in the first image to an other object in the second image to provide an object similarity measure, and determine whether the other object in the second image corresponds to the target object, based on the first likelihood and the object similarity measure. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification